Deuteronomy 27:4 in the King James Version
Therefore it shall be when ye be gone over Jordan, that ye shall set up these stones, which I command you this day, in mount Ebal, and thou shalt plaister them with plaister.
Context
3 You shall write on them all the words of this law, when you have passed over, that you may go in to the land which the LORD your God gives you, a land flowing with milk and honey, as the LORD, the God of your fathers, has promised you.
4 It shall be, when you have crossed over the Jordan, that you shall set up these stones, which I command you today, on Mount Ebal, and you shall coat them with plaster.
5 There you shall build an altar to the LORD your God, an altar of stones. You shall not use any iron tool on them.